[tests] test basic network operations
[tests] add suppression for forced error
remove windows build related file on make clean
2.7.1 to 2.8
Merge pull request #264 from ddpbsd/README.md

Update version in README.md from 2.7.1 to 2.8
Merge pull request #261 from cgzones/os_net_unittest

os net unit tests
Merge pull request #262 from cgzones/windows

remove windows build related file on make clean
[travis] clang test
[os_net] null terminate buffer in 'OS_RecvConnUDP'
[travis] add fast_finish; exclude windows build and clang compiler
[travis] add comment for change
[travis] fix linux agent build
Merge pull request #266 from cgzones/travis

travis improvements.
Merge branch 'master' into devel